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Annotation of src/include/stdio.h, Revision 1.82

1.82    ! christos    1: /*     $NetBSD: stdio.h,v 1.81 2012/03/27 15:06:01 christos Exp $      */
1.14      cgd         2:
1.1       cgd         3: /*-
1.20      perry       4:  * Copyright (c) 1990, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
1.1       cgd         6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * Chris Torek.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
1.53      agc        18:  * 3. Neither the name of the University nor the names of its contributors
1.1       cgd        19:  *    may be used to endorse or promote products derived from this software
                     20:  *    without specific prior written permission.
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     32:  * SUCH DAMAGE.
                     33:  *
1.20      perry      34:  *     @(#)stdio.h     8.5 (Berkeley) 4/29/95
1.1       cgd        35:  */
                     36:
                     37: #ifndef        _STDIO_H_
                     38: #define        _STDIO_H_
                     39:
                     40: #include <sys/cdefs.h>
1.21      kleink     41: #include <sys/featuretest.h>
1.61      kleink     42: #include <sys/ansi.h>
1.1       cgd        43:
1.12      cgd        44: #ifdef _BSD_SIZE_T_
                     45: typedef        _BSD_SIZE_T_    size_t;
                     46: #undef _BSD_SIZE_T_
1.1       cgd        47: #endif
1.74      roy        48: #ifdef _BSD_SSIZE_T_
                     49: typedef        _BSD_SSIZE_T_   ssize_t;
                     50: #undef _BSD_SSIZE_T_
                     51: #endif
1.1       cgd        52:
1.79      joerg      53: #if defined(_POSIX_C_SOURCE)
                     54: #ifndef __VA_LIST_DECLARED
                     55: typedef __va_list va_list;
                     56: #define __VA_LIST_DECLARED
                     57: #endif
                     58: #endif
                     59:
1.32      kleink     60: #include <sys/null.h>
1.1       cgd        61:
1.11      cgd        62: /*
                     63:  * This is fairly grotesque, but pure ANSI code must not inspect the
                     64:  * innards of an fpos_t anyway.  The library internally uses off_t,
                     65:  * which we assume is exactly as big as eight chars.
                     66:  */
                     67: typedef struct __sfpos {
1.33      kleink     68:        __off_t _pos;
1.80      christos   69:        __mbstate_t _mbstate_in, _mbstate_out;
1.11      cgd        70: } fpos_t;
1.1       cgd        71:
                     72: #define        _FSTDIO                 /* Define for new stdio with functions. */
                     73:
                     74: /*
                     75:  * NB: to fit things in six character monocase externals, the stdio
                     76:  * code uses the prefix `__s' for stdio objects, typically followed
                     77:  * by a three-character attempt at a mnemonic.
                     78:  */
                     79:
                     80: /* stdio buffers */
                     81: struct __sbuf {
                     82:        unsigned char *_base;
                     83:        int     _size;
                     84: };
                     85:
                     86: /*
                     87:  * stdio state variables.
                     88:  *
                     89:  * The following always hold:
                     90:  *
                     91:  *     if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
                     92:  *             _lbfsize is -_bf._size, else _lbfsize is 0
                     93:  *     if _flags&__SRD, _w is 0
                     94:  *     if _flags&__SWR, _r is 0
                     95:  *
                     96:  * This ensures that the getc and putc macros (or inline functions) never
                     97:  * try to write or read from a file that is in `read' or `write' mode.
                     98:  * (Moreover, they can, and do, automatically switch from read mode to
                     99:  * write mode, and back, on "r+" and "w+" files.)
                    100:  *
                    101:  * _lbfsize is used only to make the inline line-buffered output stream
                    102:  * code as compact as possible.
                    103:  *
                    104:  * _ub, _up, and _ur are used when ungetc() pushes back more characters
                    105:  * than fit in the current _bf, or when ungetc() pushes back a character
                    106:  * that does not match the previous one in _bf.  When this happens,
                    107:  * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
                    108:  * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
1.20      perry     109:  *
                    110:  * NB: see WARNING above before changing the layout of this structure!
1.1       cgd       111:  */
                    112: typedef        struct __sFILE {
                    113:        unsigned char *_p;      /* current position in (some) buffer */
                    114:        int     _r;             /* read space left for getc() */
                    115:        int     _w;             /* write space left for putc() */
1.65      christos  116:        unsigned short _flags;  /* flags, below; this FILE is free if 0 */
1.1       cgd       117:        short   _file;          /* fileno, if Unix descriptor, else -1 */
                    118:        struct  __sbuf _bf;     /* the buffer (at least 1 byte, if !NULL) */
                    119:        int     _lbfsize;       /* 0 or -_bf._size, for inline putc */
                    120:
                    121:        /* operations */
                    122:        void    *_cookie;       /* cookie passed to io functions */
1.57      perry     123:        int     (*_close)(void *);
1.81      christos  124:        ssize_t (*_read) (void *, void *, size_t);
1.80      christos  125:        __off_t (*_seek) (void *, __off_t, int);
1.81      christos  126:        ssize_t (*_write)(void *, const void *, size_t);
1.1       cgd       127:
1.42      yamt      128:        /* file extension */
                    129:        struct  __sbuf _ext;
                    130:
1.1       cgd       131:        /* separate buffer for long sequences of ungetc() */
                    132:        unsigned char *_up;     /* saved _p when _p is doing ungetc data */
                    133:        int     _ur;            /* saved _r when _r is counting ungetc data */
                    134:
                    135:        /* tricks to meet minimum requirements even when malloc() fails */
                    136:        unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
                    137:        unsigned char _nbuf[1]; /* guarantee a getc() buffer */
                    138:
1.81      christos  139:        int     (*_flush)(void *);
1.75      joerg     140:        /* Formerly used by fgetln/fgetwln; kept for binary compatibility */
1.81      christos  141:        char    _lb_unused[sizeof(struct __sbuf) - sizeof(int (*)(void *))];
1.1       cgd       142:
                    143:        /* Unix stdio files get aligned to block boundaries on fseek() */
                    144:        int     _blksize;       /* stat.st_blksize (may be != _bf._size) */
1.80      christos  145:        __off_t _offset;        /* current lseek offset */
1.1       cgd       146: } FILE;
                    147:
                    148: __BEGIN_DECLS
1.82    ! christos  149: extern FILE __sF[3];
1.1       cgd       150: __END_DECLS
                    151:
                    152: #define        __SLBF  0x0001          /* line buffered */
                    153: #define        __SNBF  0x0002          /* unbuffered */
                    154: #define        __SRD   0x0004          /* OK to read */
                    155: #define        __SWR   0x0008          /* OK to write */
                    156:        /* RD and WR are never simultaneously asserted */
                    157: #define        __SRW   0x0010          /* open for reading & writing */
                    158: #define        __SEOF  0x0020          /* found EOF */
                    159: #define        __SERR  0x0040          /* found error */
                    160: #define        __SMBF  0x0080          /* _buf is from malloc */
                    161: #define        __SAPP  0x0100          /* fdopen()ed in append mode */
                    162: #define        __SSTR  0x0200          /* this is an sprintf/snprintf string */
1.36      enami     163: #define        __SOPT  0x0400          /* do fseek() optimization */
                    164: #define        __SNPT  0x0800          /* do not do fseek() optimization */
1.1       cgd       165: #define        __SOFF  0x1000          /* set iff _offset is in fact correct */
1.10      cgd       166: #define        __SMOD  0x2000          /* true => fgetln modified _p text */
1.27      perry     167: #define        __SALC  0x4000          /* allocate string space dynamically */
1.1       cgd       168:
                    169: /*
                    170:  * The following three definitions are for ANSI C, which took them
                    171:  * from System V, which brilliantly took internal interface macros and
                    172:  * made them official arguments to setvbuf(), without renaming them.
                    173:  * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
                    174:  *
                    175:  * Although numbered as their counterparts above, the implementation
                    176:  * does not rely on this.
                    177:  */
                    178: #define        _IOFBF  0               /* setvbuf should set fully buffered */
                    179: #define        _IOLBF  1               /* setvbuf should set line buffered */
                    180: #define        _IONBF  2               /* setvbuf should set unbuffered */
                    181:
                    182: #define        BUFSIZ  1024            /* size of buffer used by setbuf */
                    183: #define        EOF     (-1)
                    184:
                    185: /*
1.20      perry     186:  * FOPEN_MAX is a minimum maximum, and is the number of streams that
                    187:  * stdio can provide without attempting to allocate further resources
                    188:  * (which could fail).  Do not use this for anything.
1.1       cgd       189:  */
1.20      perry     190:                                /* must be == _POSIX_STREAM_MAX <limits.h> */
1.1       cgd       191: #define        FOPEN_MAX       20      /* must be <= OPEN_MAX <sys/syslimits.h> */
                    192: #define        FILENAME_MAX    1024    /* must be <= PATH_MAX <sys/syslimits.h> */
                    193:
                    194: /* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
1.52      bjh21     195: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.1       cgd       196: #define        P_tmpdir        "/var/tmp/"
                    197: #endif
                    198: #define        L_tmpnam        1024    /* XXX must be == PATH_MAX */
1.49      christos  199: /* Always ensure that this is consistent with <limits.h> */
                    200: #ifndef TMP_MAX
                    201: #define TMP_MAX                        308915776       /* Legacy */
                    202: #endif
1.1       cgd       203:
1.22      kleink    204: /* Always ensure that these are consistent with <fcntl.h> and <unistd.h>! */
1.1       cgd       205: #ifndef SEEK_SET
                    206: #define        SEEK_SET        0       /* set file offset to offset */
                    207: #endif
                    208: #ifndef SEEK_CUR
                    209: #define        SEEK_CUR        1       /* set file offset to current plus offset */
                    210: #endif
                    211: #ifndef SEEK_END
                    212: #define        SEEK_END        2       /* set file offset to EOF plus offset */
                    213: #endif
                    214:
                    215: #define        stdin   (&__sF[0])
                    216: #define        stdout  (&__sF[1])
                    217: #define        stderr  (&__sF[2])
                    218:
                    219: /*
                    220:  * Functions defined in ANSI C standard.
                    221:  */
                    222: __BEGIN_DECLS
1.57      perry     223: void    clearerr(FILE *);
                    224: int     fclose(FILE *);
                    225: int     feof(FILE *);
                    226: int     ferror(FILE *);
                    227: int     fflush(FILE *);
                    228: int     fgetc(FILE *);
                    229: char   *fgets(char * __restrict, int, FILE * __restrict);
1.59      kleink    230: FILE   *fopen(const char * __restrict , const char * __restrict);
1.73      christos  231: int     fprintf(FILE * __restrict , const char * __restrict, ...)
1.76      joerg     232:                __printflike(2, 3);
1.57      perry     233: int     fputc(int, FILE *);
                    234: int     fputs(const char * __restrict, FILE * __restrict);
                    235: size_t  fread(void * __restrict, size_t, size_t, FILE * __restrict);
1.59      kleink    236: FILE   *freopen(const char * __restrict, const char * __restrict,
                    237:            FILE * __restrict);
1.73      christos  238: int     fscanf(FILE * __restrict, const char * __restrict, ...)
1.76      joerg     239:                __scanflike(2, 3);
1.57      perry     240: int     fseek(FILE *, long, int);
                    241: long    ftell(FILE *);
                    242: size_t  fwrite(const void * __restrict, size_t, size_t, FILE * __restrict);
                    243: int     getc(FILE *);
                    244: int     getchar(void);
1.74      roy       245: ssize_t         getdelim(char ** __restrict, size_t * __restrict, int,
                    246:            FILE * __restrict);
                    247: ssize_t         getline(char ** __restrict, size_t * __restrict, FILE * __restrict);
1.57      perry     248: void    perror(const char *);
1.73      christos  249: int     printf(const char * __restrict, ...)
1.76      joerg     250:                __printflike(1, 2);
1.57      perry     251: int     putc(int, FILE *);
                    252: int     putchar(int);
                    253: int     puts(const char *);
                    254: int     remove(const char *);
                    255: void    rewind(FILE *);
1.73      christos  256: int     scanf(const char * __restrict, ...)
1.76      joerg     257:                __scanflike(1, 2);
1.57      perry     258: void    setbuf(FILE * __restrict, char * __restrict);
                    259: int     setvbuf(FILE * __restrict, char * __restrict, int, size_t);
1.73      christos  260: int     sscanf(const char * __restrict, const char * __restrict, ...)
1.76      joerg     261:                __scanflike(2, 3);
1.57      perry     262: FILE   *tmpfile(void);
                    263: int     ungetc(int, FILE *);
1.79      joerg     264: int     vfprintf(FILE * __restrict, const char * __restrict, __va_list)
1.76      joerg     265:                __printflike(2, 0);
1.79      joerg     266: int     vprintf(const char * __restrict, __va_list)
1.76      joerg     267:                __printflike(1, 0);
1.24      mycroft   268:
                    269: #ifndef __AUDIT__
1.57      perry     270: char   *gets(char *);
1.73      christos  271: int     sprintf(char * __restrict, const char * __restrict, ...)
1.76      joerg     272:                __printflike(2, 3);
1.57      perry     273: char   *tmpnam(char *);
                    274: int     vsprintf(char * __restrict, const char * __restrict,
1.79      joerg     275:     __va_list)
1.76      joerg     276:                __printflike(2, 0);
1.24      mycroft   277: #endif
1.21      kleink    278:
                    279: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
1.57      perry     280: int     rename (const char *, const char *) __RENAME(__posix_rename);
1.21      kleink    281: #else
1.57      perry     282: int     rename (const char *, const char *);
1.21      kleink    283: #endif
1.1       cgd       284: __END_DECLS
                    285:
1.80      christos  286: #ifndef __LIBC12_SOURCE__
                    287: int     fgetpos(FILE * __restrict, fpos_t * __restrict) __RENAME(__fgetpos50);
                    288: int     fsetpos(FILE *, const fpos_t *) __RENAME(__fsetpos50);
                    289: #endif
1.1       cgd       290: /*
1.29      kleink    291:  * IEEE Std 1003.1-90
1.1       cgd       292:  */
1.51      bjh21     293: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
                    294:     defined(_NETBSD_SOURCE)
1.1       cgd       295: #define        L_ctermid       1024    /* size for ctermid(); PATH_MAX */
1.7       jtc       296: #define L_cuserid      9       /* size for cuserid(); UT_NAMESIZE + 1 */
1.1       cgd       297:
                    298: __BEGIN_DECLS
1.57      perry     299: char   *ctermid(char *);
1.40      christos  300: #ifndef __CUSERID_DECLARED
                    301: #define __CUSERID_DECLARED
                    302: /* also declared in unistd.h */
1.57      perry     303: char   *cuserid(char *);
1.40      christos  304: #endif /* __CUSERID_DECLARED */
1.57      perry     305: FILE   *fdopen(int, const char *);
                    306: int     fileno(FILE *);
1.1       cgd       307: __END_DECLS
                    308: #endif /* not ANSI */
                    309:
1.29      kleink    310: /*
                    311:  * IEEE Std 1003.1c-95, also adopted by X/Open CAE Spec Issue 5 Version 2
                    312:  */
1.51      bjh21     313: #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
                    314:     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
1.29      kleink    315: __BEGIN_DECLS
1.57      perry     316: void   flockfile(FILE *);
                    317: int    ftrylockfile(FILE *);
                    318: void   funlockfile(FILE *);
                    319: int    getc_unlocked(FILE *);
                    320: int    getchar_unlocked(void);
                    321: int    putc_unlocked(int, FILE *);
                    322: int    putchar_unlocked(int);
1.29      kleink    323: __END_DECLS
1.51      bjh21     324: #endif /* _POSIX_C_SOURCE >= 1995056 || _XOPEN_SOURCE >= 500 || ... */
1.19      jtc       325:
1.1       cgd       326: /*
1.29      kleink    327:  * Functions defined in POSIX 1003.2 and XPG2 or later.
1.1       cgd       328:  */
1.51      bjh21     329: #if (_POSIX_C_SOURCE - 0) >= 2 || (_XOPEN_SOURCE - 0) >= 2 || \
                    330:     defined(_NETBSD_SOURCE)
1.1       cgd       331: __BEGIN_DECLS
1.57      perry     332: int     pclose(FILE *);
                    333: FILE   *popen(const char *, const char *);
1.22      kleink    334: __END_DECLS
                    335: #endif
                    336:
                    337: /*
1.60      kleink    338:  * Functions defined in ISO XPG4.2, ISO C99, POSIX 1003.1-2001 or later.
                    339:  */
1.67      bjh21     340: #if ((__STDC_VERSION__ - 0) >= 199901L) || \
1.60      kleink    341:     ((_POSIX_C_SOURCE - 0) >= 200112L) || \
                    342:     (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
                    343:     ((_XOPEN_SOURCE - 0) >= 500) || \
                    344:     defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
1.64      mrg       345: __BEGIN_DECLS
1.60      kleink    346: int     snprintf(char * __restrict, size_t, const char * __restrict, ...)
1.76      joerg     347:                __printflike(3, 4);
1.60      kleink    348: int     vsnprintf(char * __restrict, size_t, const char * __restrict,
1.79      joerg     349:            __va_list)
1.76      joerg     350:                __printflike(3, 0);
1.64      mrg       351: __END_DECLS
1.60      kleink    352: #endif
                    353:
                    354: /*
1.22      kleink    355:  * Functions defined in XPG4.2.
                    356:  */
1.51      bjh21     357: #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
1.22      kleink    358: __BEGIN_DECLS
1.57      perry     359: int     getw(FILE *);
                    360: int     putw(int, FILE *);
1.24      mycroft   361:
                    362: #ifndef __AUDIT__
1.57      perry     363: char   *tempnam(const char *, const char *);
1.24      mycroft   364: #endif
1.22      kleink    365: __END_DECLS
                    366: #endif
1.34      kleink    367:
                    368: /*
                    369:  * X/Open CAE Specification Issue 5 Version 2
                    370:  */
1.51      bjh21     371: #if (_XOPEN_SOURCE - 0) >= 500 || defined(_LARGEFILE_SOURCE) || \
                    372:     defined(_NETBSD_SOURCE)
1.34      kleink    373: #ifndef        off_t
                    374: typedef        __off_t         off_t;
1.38      kleink    375: #define        off_t           __off_t
1.35      drochner  376: #endif /* off_t */
1.34      kleink    377:
1.36      enami     378: __BEGIN_DECLS
1.57      perry     379: int     fseeko(FILE *, off_t, int);
                    380: off_t   ftello(FILE *);
1.36      enami     381: __END_DECLS
1.51      bjh21     382: #endif /* _XOPEN_SOURCE >= 500 || _LARGEFILE_SOURCE || _NETBSD_SOURCE */
1.22      kleink    383:
                    384: /*
1.72      matt      385:  * Functions defined in ISO C99.  Still put under _NETBSD_SOURCE due to
                    386:  * backward compatible.
                    387:  */
                    388: #if defined(_ISOC99_SOURCE) || defined(_NETBSD_SOURCE)
                    389: __BEGIN_DECLS
1.79      joerg     390: int     vscanf(const char * __restrict, __va_list)
1.76      joerg     391:                __scanflike(1, 0);
1.79      joerg     392: int     vfscanf(FILE * __restrict, const char * __restrict, __va_list)
1.76      joerg     393:                __scanflike(2, 0);
1.72      matt      394: int     vsscanf(const char * __restrict, const char * __restrict,
1.79      joerg     395:     __va_list)
1.76      joerg     396:     __scanflike(2, 0);
1.72      matt      397: __END_DECLS
                    398: #endif /* _ISOC99_SOURCE || _NETBSD_SOURCE */
                    399:
                    400: /*
1.22      kleink    401:  * Routines that are purely local.
                    402:  */
1.51      bjh21     403: #if defined(_NETBSD_SOURCE)
1.46      lukem     404:
                    405: #define        FPARSELN_UNESCESC       0x01
                    406: #define        FPARSELN_UNESCCONT      0x02
                    407: #define        FPARSELN_UNESCCOMM      0x04
                    408: #define        FPARSELN_UNESCREST      0x08
                    409: #define        FPARSELN_UNESCALL       0x0f
                    410:
1.22      kleink    411: __BEGIN_DECLS
1.57      perry     412: int     asprintf(char ** __restrict, const char * __restrict, ...)
1.76      joerg     413:                __printflike(2, 3);
1.57      perry     414: char   *fgetln(FILE * __restrict, size_t * __restrict);
1.46      lukem     415: char   *fparseln(FILE *, size_t *, size_t *, const char[3], int);
1.57      perry     416: int     fpurge(FILE *);
                    417: void    setbuffer(FILE *, char *, int);
                    418: int     setlinebuf(FILE *);
                    419: int     vasprintf(char ** __restrict, const char * __restrict,
1.79      joerg     420:     __va_list)
1.76      joerg     421:                __printflike(2, 0);
1.62      perry     422: const char *fmtcheck(const char *, const char *)
1.76      joerg     423:                __format_arg(2);
1.1       cgd       424: __END_DECLS
                    425:
                    426: /*
                    427:  * Stdio function-access interface.
                    428:  */
                    429: __BEGIN_DECLS
1.57      perry     430: FILE   *funopen(const void *,
1.81      christos  431:     int (*)(void *, char *, int),
                    432:     int (*)(void *, const char *, int),
                    433:     off_t (*)(void *, off_t, int),
                    434:     int (*)(void *));
                    435: FILE   *funopen2(const void *,
                    436:     ssize_t (*)(void *, void *, size_t),
                    437:     ssize_t (*)(void *, const void *, size_t),
                    438:     off_t (*)(void *, off_t, int),
                    439:     int (*)(void *),
                    440:     int (*)(void *));
1.1       cgd       441: __END_DECLS
                    442: #define        fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
                    443: #define        fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
1.81      christos  444: #define        fropen2(cookie, fn) funopen2(cookie, fn, 0, 0, 0, 0)
                    445: #define        fwopen2(cookie, fn) funopen2(cookie, 0, fn, 0, 0, 0)
1.51      bjh21     446: #endif /* _NETBSD_SOURCE */
1.1       cgd       447:
                    448: /*
                    449:  * Functions internal to the implementation.
                    450:  */
                    451: __BEGIN_DECLS
1.57      perry     452: int    __srget(FILE *);
                    453: int    __swbuf(int, FILE *);
1.1       cgd       454: __END_DECLS
                    455:
                    456: /*
                    457:  * The __sfoo macros are here so that we can
                    458:  * define function versions in the C library.
                    459:  */
                    460: #define        __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
                    461: #if defined(__GNUC__) && defined(__STDC__)
1.63      perry     462: static __inline int __sputc(int _c, FILE *_p) {
1.1       cgd       463:        if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
                    464:                return (*_p->_p++ = _c);
                    465:        else
                    466:                return (__swbuf(_c, _p));
                    467: }
                    468: #else
                    469: /*
                    470:  * This has been tuned to generate reasonable code on the vax using pcc.
                    471:  */
                    472: #define        __sputc(c, p) \
                    473:        (--(p)->_w < 0 ? \
                    474:                (p)->_w >= (p)->_lbfsize ? \
                    475:                        (*(p)->_p = (c)), *(p)->_p != '\n' ? \
                    476:                                (int)*(p)->_p++ : \
                    477:                                __swbuf('\n', p) : \
                    478:                        __swbuf((int)(c), p) : \
                    479:                (*(p)->_p = (c), (int)*(p)->_p++))
                    480: #endif
                    481:
                    482: #define        __sfeof(p)      (((p)->_flags & __SEOF) != 0)
                    483: #define        __sferror(p)    (((p)->_flags & __SERR) != 0)
                    484: #define        __sclearerr(p)  ((void)((p)->_flags &= ~(__SERR|__SEOF)))
1.71      christos  485: #define        __sfileno(p)    \
                    486:     ((p)->_file == -1 ? -1 : (int)(unsigned short)(p)->_file)
1.1       cgd       487:
1.56      kleink    488: #ifndef __lint__
1.50      kleink    489: #if !defined(_REENTRANT) && !defined(_PTHREADS)
1.1       cgd       490: #define        feof(p)         __sfeof(p)
                    491: #define        ferror(p)       __sferror(p)
                    492: #define        clearerr(p)     __sclearerr(p)
                    493:
                    494: #define        getc(fp)        __sgetc(fp)
                    495: #define putc(x, fp)    __sputc(x, fp)
1.50      kleink    496: #endif /* !_REENTRANT && !_PTHREADS */
1.56      kleink    497: #endif /* __lint__ */
1.1       cgd       498:
                    499: #define        getchar()       getc(stdin)
                    500: #define        putchar(x)      putc(x, stdout)
1.19      jtc       501:
1.51      bjh21     502: #if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
                    503:     defined(_NETBSD_SOURCE)
1.50      kleink    504: #if !defined(_REENTRANT) && !defined(_PTHREADS)
1.19      jtc       505: #define        fileno(p)       __sfileno(p)
1.50      kleink    506: #endif /* !_REENTRANT && !_PTHREADS */
1.30      kleink    507: #endif /* !_ANSI_SOURCE */
1.19      jtc       508:
1.77      christos  509: #if (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE)
1.79      joerg     510: int     vdprintf(int, const char * __restrict, __va_list)
1.77      christos  511:                __printflike(2, 0);
                    512: int     dprintf(int, const char * __restrict, ...)
                    513:                __printflike(2, 3);
                    514: #endif /* (_POSIX_C_SOURCE - 0) >= 200809L || defined(_NETBSD_SOURCE) */
                    515:
1.51      bjh21     516: #if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
                    517:     defined(_REENTRANT) || defined(_NETBSD_SOURCE)
1.19      jtc       518: #define getc_unlocked(fp)      __sgetc(fp)
                    519: #define putc_unlocked(x, fp)   __sputc(x, fp)
                    520:
                    521: #define getchar_unlocked()     getc_unlocked(stdin)
                    522: #define putchar_unlocked(x)    putc_unlocked(x, stdout)
1.51      bjh21     523: #endif /* _POSIX_C_SOURCE >= 199506 || _XOPEN_SOURCE >= 500 || _REENTRANT... */
1.19      jtc       524:
1.78      tnozaki   525: #if (_POSIX_C_SOURCE - 0) >= 200809L || (_XOPEN_SOURCE - 0) >= 700 || \
                    526:     defined(_NETBSD_SOURCE)
                    527: FILE *fmemopen(void * __restrict, size_t, const char * __restrict);
                    528: #endif
                    529:
1.70      kristerw  530: #if _FORTIFY_SOURCE > 0
1.69      tls       531: #include <ssp/stdio.h>
1.70      kristerw  532: #endif
1.69      tls       533:
1.1       cgd       534: #endif /* _STDIO_H_ */

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